What is an X endorsement on a CDL?

a.An endorsement for extra-long vehicles

b.A combined tanker and hazardous materials endorsement

c.An endorsement for driving in extreme weather

d.An endorsement for transporting explosives only

Explanation

The X endorsement is a combined endorsement that covers both tanker (N) and hazardous materials (H) requirements. A driver with an X endorsement is authorized to drive a tank vehicle carrying hazardous materials, rather than needing separate N and H endorsements.

← Back to Tank Endorsement Test #1

Related Questions

What is liquid surge?What effect can side-to-side surge have on a tanker vehicle?What is the primary danger of forward-and-back surge?Why should you never fill a tank completely full?What is outage?

About the CDL Exam

The CDL (Commercial Driver License) exam tests your knowledge of commercial driving rules, safety procedures, and vehicle operation. You must score 80% or higher to pass the written knowledge test. The exam covers general knowledge, air brakes, combination vehicles, and various endorsements.

This question is from the Tank Endorsement Test #1 section. Practice with more questions from this category to build confidence before taking the official DMV test.

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